Tracklist:1. Itsuka no, Ikutsuka no Kimi to no Sekai2. ARE YOU SLEEPING?3. Itsuka no, Ikutsuka no Kimi to no Sekai (Galileo Galilei "dog bass" Remix)4. Itsuka no, Ikutsuka no Kimi to no Sekai -Instrumental-5. ARE YOU SLEEPING? -Instrumental-